---
title: "TIME GROUP — aviation glossary — OnlyPlanes"
description: "Four digits representing the hour and minutes from the Coordinated Universal Time (UTC) clock."
canonical_url: "https://onlyplanes.ru/en/learn/time-group"
locale: en
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  "og:title": "TIME GROUP — aviation glossary"
---

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Operations

# TIME GROUP

TERM · Operations

At a glance

## Meaning of TIME GROUP

Four digits representing the hour and minutes from the Coordinated Universal Time (UTC) clock.

### More about TIME GROUP

Four digits representing the hour and minutes from the Coordinated Universal Time (UTC) clock. FAA uses UTC for all operations. The term “ZULU” may be used to denote UTC. The word “local” or the time zone equivalent must be used to denote local when local time is given during radio and telephone communications. When written, a time zone designator is used to indicate local time; e.g., “0205M” (Mountain). The local time may be based on the 24‐hour clock system. The day begins at 0000 and ends at 2359.

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